android/android_kernel_samsung_sm8650
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ceph_wait_on_conflict_unlink(): grab reference before dropping ->d_lock

Browse Source 
[ Upstream commit dc32464a5fe4946fe1a4d8f8e29961dc411933c5 ]

Use of dget() after we'd dropped ->d_lock is too late - dentry might
be gone by that point.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Al Viro 2023-09-14 21:55:29 -04:00 committed by Greg Kroah-Hartman
parent 9eab5008db
commit 803cc77a3a
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/ceph/mds_client.c
View File

@ -709,8 +709,8 @@ int ceph_wait_on_conflict_unlink(struct dentry *dentry)
if (!d_same_name(udentry, pdentry, &dname))
goto next;
found = dget_dlock(udentry);
spin_unlock(&udentry->d_lock);
found = dget(udentry);
break;
next:
spin_unlock(&udentry->d_lock);